The two groups of simple and branched Clavarim are
brought together by this species. S o w e r b y has confounded
it with C. coralloides; but it is of a firmer consistence than
that plant; and when the varieties of each happen to resemble
one another in form, they may be at once distinguished by the
even surface of the one and the wrinkled surface of the other.
Fig. 1. Cl. rugosa. Fig. 2. Section o f an old plant, natural size.
Asci and sporidia, magnified.
Fig. 3.
A